Best B2B Ecommerce Platforms: Fit and Switching Effort

Every list of the best B2B ecommerce platforms reads the same: a feature grid, five green checkmarks, no losers. That framing is wrong on its face — a platform built for a 400-SKU distributor and a platform built for a 40,000-SKU manufacturer cannot both be the right pick for the same brand, and a list that never says so is a list that has not actually used any of them.

This one names who each platform is not for, on purpose, before it names who it is for. That is the only version of a “best B2B ecommerce platforms” comparison worth reading at $3M–$30M in revenue, because the wrong platform at this size is not a feature gap — it is a migration you run again in eighteen months.

What makes the best B2B ecommerce platforms differ for a $3M–$30M brand?

The best B2B ecommerce platform for a brand at this size is the one whose ceiling — catalogue count, order channel, or implementation cost — sits comfortably above where the business is going, not just where it is today. Feature parity between the major platforms is closer than vendor marketing suggests; the real differentiator is what breaks first as the wholesale side scales, and how much work switching to a bigger platform later actually costs.

Every entry below gets three things: what it is actually for, the honest limit that decides who should not buy it, and what switching off it costs in practice — not in licence fees, in the data and workflow that has to move.

Shopify B2B on Plus

Shopify B2B is a native feature set — company accounts, tiered price lists, quantity rules and net payment terms — that now ships on every paid Shopify plan, not only Plus. What Plus adds is the ceiling: unlimited active price lists instead of a cap of three, catalogue assignment directly to a single company location, and deposits or partial payments on large orders. It sells to a business buyer from the exact same storefront, theme and inventory pool a Shopify store already runs for direct-to-consumer sales, which is the whole appeal for a brand that already sells on Shopify.

Who this is not for: a brand running four or more distinct pricing structures — a distributor tier, a reseller tier, a house-account tier and a seasonal catalogue is a routine wholesale pricing setup, not an edge case — hits the standard-plan catalogue cap of three and needs Plus, and even on Plus, Shopify records an unpaid net-terms invoice without chasing it or flagging it anywhere visible; a brand that cannot commit to building its own accounts-receivable reconciliation should not treat Shopify B2B as a finished collections system. Full mechanism, the plan-by-plan ceiling and the migration path off a legacy wholesale app are covered in what Shopify B2B actually does.

BigCommerce B2B Edition

BigCommerce B2B Edition is an add-on module — not a plan tier — that layers company accounts, buyer roles, quote workflows, payment terms and a bulk quick-order interface onto a standard BigCommerce storefront. Its most distinguishing feature against Shopify B2B is native multi-storefront support: one BigCommerce back end can run a separate B2B storefront, with its own domain and catalogue subset, alongside the consumer storefront, rather than gating pricing behind a login on a shared theme.

BigCommerce also does not carry a hard revenue cap the way Shopify Plus does at its enterprise tier — BigCommerce’s Enterprise plan is negotiated per account rather than published, so the ceiling question shifts from “what plan tier includes this” to “what the negotiated contract actually covers,” which a brand has to confirm directly with BigCommerce rather than infer from a public pricing page.

Who this is not for: a brand that wants B2B functionality included in its base plan rather than negotiated as a separate module, and a brand whose developer bandwidth cannot support BigCommerce’s steeper theme-customisation model — BigCommerce’s Stencil framework is more flexible than Shopify’s Liquid for a multi-storefront build, and that flexibility is also more implementation effort for a lean internal team.

Adobe Commerce (Magento)

Adobe Commerce is a self-hosted, open-architecture platform with B2B functionality — company accounts, negotiated catalogues, requisition lists, a quote-and-negotiation workflow, and role-based purchase approval — built into its core rather than added as a module. The requisition-list and multi-level approval workflow is the real differentiator: a large buying organisation can route a purchase order through its own internal sign-off chain before it reaches the merchant, a workflow neither Shopify B2B nor BigCommerce B2B Edition replicates natively.

That depth comes from architecture, not configuration. Adobe Commerce is typically deployed on Adobe’s own cloud infrastructure or self-hosted, with implementation handled by a certified solutions partner rather than an in-house Shopify admin user. The pricing model is a percentage of gross merchandise value on Adobe’s cloud tier, which means cost scales with the wholesale channel’s own success rather than staying flat — worth pricing directly against the specific GMV band a brand expects to run.

Who this is not for: a brand without a dedicated development team or an ongoing budget for a solutions-partner relationship. Adobe Commerce’s approval-chain depth exists because large B2B buyers demand it — a $3M–$30M brand whose buyers are smaller accounts placing straightforward reorders is paying for workflow complexity it will never use.

OroCommerce

OroCommerce was built B2B-first rather than adapted from a B2C platform, and it shows in the data model: it separates the buying organisation from the individual buyer more thoroughly than any platform above, with multi-website, multi-currency and multi-organisation support native to the core rather than bolted on. It ships with a built-in CRM and a configurable approval-workflow engine aimed at complex account hierarchies — a distributor buying on behalf of several sub-accounts, each with its own credit limit and approval chain.

The open-source Community Edition is free to self-host, which makes OroCommerce the only platform on this list with a genuinely free entry point; the commercial edition adds hosting, support and additional B2B modules on a negotiated licence.

Who this is not for: a brand whose wholesale operation is still simple — one price list, straightforward net-terms buyers, no sub-account hierarchy. OroCommerce’s account-hierarchy depth is the reason to choose it and also the reason a smaller wholesale operation finds it heavier to configure and maintain than the ceiling it actually needs.

A wholesale app on a standard Shopify plan

Before native Shopify B2B existed, and still today for a brand not ready to commit to Plus, a wholesale app — Handshake among the better-known names — runs as a bolt-on: a separate password-protected catalogue, its own checkout logic, and price tiers configured inside the app rather than inside Shopify admin. It is the lowest-commitment way to start selling wholesale from an existing standard-plan Shopify store, because it adds no plan-tier requirement and no new theme.

The trade-off is the one every bolt-on app carries: customer records, price tiers and order history live in the app’s own tables, not Shopify’s, so moving off it later — to native Shopify B2B, or to a different platform entirely — means exporting and re-importing that data by hand rather than following a built-in migration path. That exact migration risk, and the three places it breaks in practice, is covered in what Shopify B2B does and does not migrate automatically.

Who this is not for: a brand that already knows wholesale will be a durable, growing revenue line. A wholesale app is the right starting point for testing whether B2B demand exists at all; it is the wrong place to still be running pricing and collections once that demand is confirmed, because every month spent there is data that has to move again.

How should a $3M–$30M brand actually choose between these?

Start from the ceiling each platform enforces, not the feature list. Count the pricing structures the wholesale side runs today and where that count is heading in the next contract term — three or fewer keeps a brand comfortably on standard-plan Shopify B2B; four or more forces the Plus conversation regardless of anything else on this list. Count the approval complexity buyers actually need — a straightforward reorder needs none of Adobe Commerce’s or OroCommerce’s workflow depth, and a multi-tier distributor hierarchy needs exactly that depth from day one, not as a later upgrade.

Then price switching effort, not just licence cost. Moving off a wholesale app, off Magento’s older on-premise version, or between any two of these platforms means customer records, price tiers and order history have to be matched and re-imported — the cost of that migration does not appear on any vendor’s pricing page, and it is frequently larger than the price difference between platforms. A brand that picks the platform matching where it will be in two years, not just where it is now, avoids paying that migration cost twice.

Table: the honest ceiling on each platform

Read the table as a filter, not a leaderboard: eliminate the row whose ceiling the business has already outgrown, and eliminate the row built for complexity the business does not have. What is left is usually one platform, not five.

What’s the real switching cost between B2B ecommerce platforms?

The real switching cost is time spent reconciling customer, pricing and order data by hand, not the new platform’s licence fee. Every migration in this category — off a wholesale app, off an older Magento install, between any two platforms above — shares the same failure pattern: a buyer’s existing consumer account and their new B2B company account get imported as two separate records because the tools match on an internal ID rather than on email, a percentage-off-retail price tier gets re-expressed incorrectly against a product added after the data export was taken, and historical order dates get overwritten with the import date, which breaks any loyalty tier or reorder-cadence report built on order history.

A vendor’s feature comparison never mentions any of this, and cleaning it up after go-live costs more than planning the data-matching step before migrating in the first place.

Does the platform choice change what an ops-automation build looks like?

Yes, and this is the part a feature-list comparison never covers. Every platform on this list tells you what was ordered and under what terms; none of them tells you, by default, which company account is sliding past its payment terms, whether a synced accounting entry posted as an invoice or a paid sales receipt, or whether a price override survived a catalogue update. That gap exists on every platform in this comparison, regardless of which one a brand ends up choosing — it is an ops-automation problem, not a platform-selection problem, and it is the recurring work a scaling brand still has to build once the platform decision is made. Picking the right platform narrows the gap; it does not close it.